Why do I miss so many of IB's bulletins?

Some other traders today report getting a bulletin from IB about ECBOT being down. I never got a bulletin, and my bulletin window is blank. This has happened several times before - I never got bulletins that I've heard others getting. Seems like most of the bulletins I do get are for exchanges I never trade, so why wouldn't I be getting them for exchanges I trade every day?

Is there somewhere to select which exchanges you want to see bulletins for?